Posted by Two words on August 17, 2001 at 17:52:54:
In Reply to: Re: valve extensions or other remedies posted by Gus Pratt on August 17, 2001 at 14:46:46:
Lever arm.
The farther from the fulcrum the force is applied, the greater the force at the fulcrum. Your pinky would have a shorter but more difficult job to do. It would be better (though I suspect not really 'good' to set your thumb ring to accomodate the pinky and extend the fore-finger.
Joe Baker, who took a couple of physics classes.